Critical Thinking Without solving, explain what is wrongwith the following mixture problem: How many liters of25% ethanol should be added to 20 liters of 48% ethanolto obtain a solution of 58% ethanol? Now go through analgebraic solution. What happens?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Critical Thinking Without solving, explain what is wrong
with the following mixture problem: How many liters of
25% ethanol should be added to 20 liters of 48% ethanol
to obtain a solution of 58% ethanol? Now go through an
algebraic solution. What happens?
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